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From: gwyn@brl-vld@sri-unix.UUCP
Newsgroups: net.unix-wizards
Subject: Re:  another argument against shared libraries
Message-ID: <4157@sri-arpa.UUCP>
Date: Fri, 12-Aug-83 16:26:16 EDT
Article-I.D.: sri-arpa.4157
Posted: Fri Aug 12 16:26:16 1983
Date-Received: Sat, 13-Aug-83 20:20:24 EDT
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From:      Doug Gwyn (VLD/VMB) <gwyn@brl-vld>

UNIX System V shared memory sets up page table entries for the processes
involved; what else did you expect?  I wouldn't say they completely
redesigned major chunks of the kernel, but exec, exit, etc. do have hooks
into the shared-memory module.

This shared memory is really shared memory.  I believe it was added to
UNIX by the Real-Time folks, who need this kind of thing.  Sockets are
not the universal answer to everybody's IPC needs.